Lapping a Q6600 HIS and th.ultra120-extreme makes sense?

[ninogui]

Hi people,

prob old news, but i found this

http://www.overclockers.com/tips458/

I am waiting for a thermal ultra120-extreme to swap for my zalman cp9700led.

Ive seen in the net its surface is coarse. Does it make sense to lap it.? some people say yes, some say no... some say dont go over 600 grit, some say go up to 1200/1500...

whats you guys think.? unlapping is not possible, so id like some insight before doing it.



greets

[kup]

Well I've just switched on after lapping both my Q6600 and TRUE, and I can't see the temps are any lower at all. Well, tell a lie, 3 cores are lower but one core is still just as hot as before...

Both heatsink and CPU IHS lapped to 800grit, took about 4 hours to get it done really nicely!

EDIT: Ok, temps dropped by about 2*c with uncured AS5 compared to AS Alumina (no cure time) so I'll give it a few days and see how she does? The temps are more stable, not jumping up and down quite so much, but still not as low as the 10*c drop some people report!!!

[CERO]

Uhm for me , I bought a lapping kit from 400-2500, and it was worth it!, first I had some crappy kit from 400-800grit, it just gave me 3c drop for lapping cpu+ TRUE, probbly did it not properly, as was my first time lapping, then I bought that 400-2500 lapping kit and relap it, amazingly, a significant drop! 13c drop during load on the hottest core....

[Nate P.]

I lapped my CPU, and it's definitely worth it. I dropped 5C. Mine was REALLY bad, heatsink didn't even make contact in the middle!!